Templet for concrete-tampers.



- L 6. CH8.

TEHPLET FOR CGNCRETE TAIIIPERS.

aPPusmen HLED on. 4. um.

i a23%,(1943. Patented 0st, 2, 1.918.

INVENTOR WI IN E 8815 8 fizz/MR5 55/9/95,

ATTORNEYS "it. Ann. M

TEhIP'LlZT E03 801i} CRETE-TAEXEERS.

Specification of Letters Patent. P l

spplieetion filed Hotelier s, 1918. Serial No. 12-3385.

To aZZ may concern:

Be it known that l, Enwsnn G. CARR, e citizen of the United States, and e resident of Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in 'i'emplets for Concrere-'lexnpers of which the following is u s ecificetion.

My invention relates to concrete tempers and more particularly to the tcmplets used in such tempers of type disclosed in my lfetents No. 12G382, dated Got. 31. 1916 and No; 120E 15; dated November 7, 1916.

in making concrete roads having a turn or bend in the some the general practice is to make the surface of the curved portion flat and inclined to turd the inside of the road or banking as it is called and the straight portions of the roe-d have or crown the roadway dipping gradually to each side thereof to the gutter or edge; this of course necessitates the lower face of the completbeing curved to conform to and create the crown; it will of course be seen that such curred hose templets cannot be used on the curved portions of the road which as hereinbefore pointed out is made fiat.

One object therefore, of this invention is to provide a templet applicable for use on fist or crowned beds.

A further object is to provide a teniplet with means for adjusting the active Working edge to varying curvatures.

With these and other objects in View this invention consists in certain novel features of construction arrangement of ports as will be hereinafter more fully described and then pointed out in the claims reference being had to the accompanying drawings in which I Figure 1 is a front elevation of an embodiment of my invention,

Fig. 2 is a Vertical transverse section on line 22 of Fig. 1.

Fig. 3 is on end elevation.

Fig. 4: is an enlarged perspective View of one of the clamp brackets.

ln'the drawing; Whichexhibits one embodiment of my device the master templot is represented by the character 16 and own prises a basin of WOOCl or other suitable springyor flexible material having its lower face or ed e curved as indicated by the lower dotted line 11 in Fig. 1, this curvature tie e so being such as to accommodate the face to Wai having an elongated slot as indicated e 7 115' and i3; tne front well has an tinged e3;-

tension 12 which forms a bracket to is bolted the e siliary teinplet which i practically the some length as the mos-tel templet 10 but has straighturgper and iorrer aces; this auxiliary teniplet is much t ten the master teinplet and is composed some spring'y me eriol and is bolted solo; master teinplct, adjacent its ends so while it may have a slight movement its ends it is free to he flexed between the some. The clamps 12 which in the present form of device, are two in number, are slipped over the central portion of the master templet and held thereon by colts passed through said teniplet and through the slots in the front and rear Walls of the clamp; and nuts 16 screwed on the q q so on the bolts. Through the upper end of each clump a screw shaft 17 having uhancile i8, is threaded the lower end 19 of the screw coring against the upper face of the muster tcinplot.

This romping device is designed to used with either of my concrete ipers hereinhcfore referred to, or it may lie us d with any ten'iier or device for rodding o1? concrete road eds.

in order to use the den-ice on curves,

bonds or list roads the parts are in the position indicated in Fig. l, the camping *ill be done by the {lotioner face of the auxiliary teznplet 14. c

When how ver, the device is to he used on the straight portion of o road or on the usual crowned roads, the longitudinal contour of the lower face. of the auxiliz iry teinplet must be changed to conform to the contour of the crowned road bed; to do this the nut 16 is loosened which leaves the clamp freely to move relatively to the body-of the 6110 plet; now by screwing the lower end of screw shafts 17 down against the upper face of the master templet the clamps will rise carrying the auxiliary templet upwardly w th them, and es'the ends of the auxiliary templet have very slight lilOVGHlEl'lt the templet he- N so;

tween the points of end attachment will become flexed and the contour of the lower face of the same will become curved the dcgree of which will be governed by movement of the clamps; when the desired curvature is secured the nuts 16 are screwed tightly against the clan'ips securely holding, the auxiliary templct in place and with its lower "face flexed to fhc necessary curvature. Any number of clamps and correlated bending devices may used as occasion may require.

While 1 have illustrated in the drawings a very desirable simple and novel tamping device and means for changing the curvature of the active face of the same, I do not wish to limit my protection to the specific construction and operation illustrated, as the claims themselves will define the scope of the invention.

i. A. concrete tamper comprising a master ten'iplet, an auxiliary templct adjacent its lower end and held alongside the same, and means for flexing; the lower face of the auxiliary templct.

concrete tamper comprising a master temple-t, an auxiliary templet adjacent its lower end and held alongside the same, and means carried by the master teinplet tor flexing the lower face of temple-t.

l concrete tamper comprising a mastcr teinplct, an auxiliary teinplet coextensive longitudinally therewith adjacent its lower end and held alongside the same and means for changing the contour of the lower face of the auxiliary templet. v

l. A concrete tamper comprising in combination a master tcmplet having a normally curred lower face, an auxiliary tcmplet having a flat lower face and held alongside the r templet and adjacent its lower end,

the auxiliary nary templct to conform to the curva ture of the lower face of the master templet.

A. concrete tan'iper consisting of a maszeinplct having a normally curred lower are, an unidiary teniplet held'at its ends i l he lower end or the master ternp. t longside ot'the same, the lower t: c o {tllTIlllN teinplet having a c0nionic-us nor :aily liat lower face, means carried by one tennlet and engaging the means for flexing" the lower face of the other templet to flex the lower face of the auxiliary templet.

(i. A concrete, tamper comprising in combination a master templct, a clamp slidably held on the same, an auxiliary templet secured at its ends to the master templet alongside the same and adjacent its lower end, the lower face of the auxiliary templet being normally flat from end to end, said templet rigidly secured to said clamp, and means carried by the clamp to flex the lower face of the auxiliary templet.

7. A concrete tamper comprising in combination a master templet, an auxiliary templot secured at its ends to the master templet alongside the same and adjacent its lower end, a clamp member mounted on said master templet and comprising front and rear walls slidably engaging the templet, the front wall rigidly secured to the auxiliary templet, and screw means carried by the clamp to licx the lower face of the auxiliary templct.

8. A concrete tamper comprising in combination a master tcmplet and an auXiliary templet secured at its ends to the master tcmplct alongside the same and adjacent the lower end thereof, a clamp member fitted t0 the master templet having slotted front and rear walls slidably' engaging the master templet, the front wall offset and rigidly secured atits lower end to the auxiliary tern plet, a. bolt passing through said master templet and the slots of the clamp, a clamp nut carried by said bolt to lock the clamp member to the master templet and a screw shaft slidable through the upper wall of the clamp and adapted to engage the upper face of the master templet, whereby the lower face of the auxiliary templet may be flexed to cause curvature of the same.

9. A templet for concrete tampers consisting of a main or body portion and an auxiliary templet held adjacent its lower end and alongside the same and secured thereto at the ends thereof.v

10. A templet for concrete tempers comprising a rigid master templet and a flexible auxiliar r templet positioned adjacentits lower end.

E. G. CARE. Witnesses:

ABE BEKINB, E. Escorrmk. 

